haem Flashcards

1
Q

henoch - purpura?

A

Henoch-Schonlein Purpura (HSP )= small vessel vasculitis caused by immune complex composite from infection triggers

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2
Q

triggers/ etiology for HP?

A

genetic predosipition, preceding infection (group A strep 1-3 wks before) & genetic pre-disposition, drugs, vaccines ,GI infection some antibodies (

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3
Q

pathophysiology of HP?

A

igA complex -> aggregate and deposit in target organs post URT infection.

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4
Q

CF of HSP?

A

palpable purpura, arthritis/arthralgia/ GI or renal sx.
-hematuria/ proteinuria. ARF/CRF
-rash over buttocks & extensor surface.
abdominal pain due to mesenteric vasculitis.

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5
Q

dx ? dd

A

autoimmune markers, fbc, high esr, cbc , platelet counts.
ddx: acute abdomen, renal syndromes, SLE, IBD, RA

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6
Q

treatment of hsp

A

immunosuppressive agent or self limited.
- iv fluids
iv prednisolone if severe esp if renal function compromised.
NSAId 1st line

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7
Q

DIC:

A

activation of coagulation syst6em caused via marked activation of fibrinolytic cascade.

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8
Q

acute and chronic cause?

A

acute: sepsis, obstetric shock, burns, hemorrhages, infections, acute leukemias., acute hemolytic transfusion reaction.

chronic: gastric/pancreatic Ca.

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9
Q

stages/ phases of DIC?

A

hypercoagulation: activation and overuse of the coagulation system.
-exhaustion due to formation of thrombi.
decrease in serum platelets. thrombocytopenia.
final: resolve, complication or death.
hyper vs hypocoagulation in thrombi formation in capillaries.

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10
Q

pathophysiology of DIC?

A
  1. damaged tissue release tissue factor.
  2. activate fibrinogen cascade and formation of micro-vessel thrombi.
    3.reduction in conc of fibrin factors. impaired hemostatic status.
  3. fibrinolytic activity: increase d-dimer activity.
    5.FDP’s inhibit coagulatin factors and increase exporesison of thrombomodulin-thrombi complex in blood (diagnostic) activate protein c. inactivates factor 5a & 8a
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11
Q

acute vs chronic DIC?

A

acute: purpura, ecchymosis, bleeds in body orifices. digital gangrene and adult ARDS.
chronic: hemorrhagic crisis or asymtpomatic

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12
Q

DIAGNOSITC OF dic?

A

decrease fibrinogern activity, prolonged PT, APTT.
increase d-dimer,
generalised thrombocytopenia.

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13
Q

treatment:

A

heparin for acute: decrease fibrinogen-fibrin conversion. shuts off formation of thrombi.
fresh platelet plasma infusion
-LMW herparin for chronic: chronic embolism formation in metastasis.
warfarin: unsuccessful.
trx underlying cause and resect any tumors, radio/ chemo and immunosuppression.

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14
Q

MM
+ triad of abnormality

A

malignant proliferation of plasma cell’s in BM. triad of abnormalities:
1. accumulation of b-cells
2.punmched out lesions in Bone.
3. monoclonal aggregation of igG (secreted by plasma cells)

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15
Q

etiology & pathophysiology

A

no known genetic component or environmental factors (idiopathic) affects >60. BM cells stromal interact with cancerous cells and adhesive. CK , drug resisANCE AND GROWTH.
ck released and harms body. iL-3 inhibit osteoblast progenitor. OPG inhibited via DKK1 and inhibits osteoclast. osteoclast can stimulate via IL-6 amplification of MM. hypercalcemia-> nerve issues & dheydration.

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16
Q

clinical features

A

backpain, fractures, URTI, anaemia, RF, proteinuria, dehydration. scans show lytic bone lesions.
bone marrow< 15 % normally. MM shifts hemopoietic stem cell-> abnormal Ab (just light chain-paraportein; igG and igA).

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17
Q

diagnostic

A

light chain -bens johns proteins. shift of haemopoietin SC shift from myeloid to lymphoid proliferation. increase n paraprotein, decrease in normal AB, urea/nitrogen, hypercalcemia, anaemia, increase in creatinine. CT/X ray shows bone changes. bone profile test. bone aspiration and bone marrow biopsy. >10% monoclonal plasma cell in BM, Ab urine/ serum.

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18
Q

mneomic (CRAB)+ extra details:

A

Calcaemic Renal failure Anaemia Bone lesions.

Bone pain with hypercalcemia 🡪 neoplastic pl cells activate RANK receptor
on osteoclasts = bone destruction. “punched out” lesions seen on x-ray - ↑ risk of fracture
↑ risk of infx 🡪 monoclonal ab lacks Ag diversity; infx most common cause of death
10 AL amyloidosis = free light chains circulate in serum + deposit in tissues
Proteinuria = free light chain excreted in urine as Bence Jones proteins 🡪 ↑ risk of renal failure

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19
Q

trx:

A

chemo, radiation.
standard: melphalan, prednisolone (paraprotein and bone degradation reduce).
fitter pts: high dose therapy, stem cell rescue and VAD (vincristine, Adriamycin and dexamethasone) used to treat most cancers

20
Q

staging

A

3 staGES if the B2M count serum is above 5.5 then the survival rate reduces. & serum albumin (assoc with IL-6-> encourages growth of MM) serum/urine electrophoresis

21
Q

hemaotpoesis normal

A

pluripotent (multipotent-BM).
myeloid (myeoblast, proerythroblast), monoblast and megakaryoblast).
& lymphoid cells (t and B lymphocytes).
proerythroblast-> normoblast-> reticulocytes-> erythrocytes (120 days)
myeloblast-> promeyloytes-> myelocytes-> metamelacyocyes (granulocytes- Neu, baso, esino) 7 hrsin blood
mooblast-> promonoblat-> monocytes.
mekaryoblast-> promegakaryocites-> megakaroyctes-> platelets (7 day life)
only and lymphoid granulocytes an monocyte have nucleus.
haemostasis 1st .
neu- bacteiria/ fungus.
baso- histamines
eosino- parasite, allergies.
b-humoral
t-cellular immunity.
yolk sac 3 wks, 6 wks (liver & spleen)-> bm main source.

red marrow-> yellow marrow as we age. inactive until chronic hemolysis.
BM: central skeleton, ribs, pelvis. sternum, vertebrate body-flat bones).
MCV-80-100 fl- av vol of RBC (classify anemia).
low MCV-micro
normocytic
high MCV-macrocytic,
HB-140-180 g/L
females: 120-160
rbc: 4.7-6.1 x 1012
4.2-54 x 1012
ratio of rbc to whole blood (Hct)
40.7-50.3
anemia: low Hct + HB.

pathologies can cause hemopoesis to resume ack in liver+ spleen (extra medullary hemopoietic).

22
Q

iron defiicency anemia:

A

developing world: acute GI bleeds, PUD< haemorrhage.
developed: nutritional deficiency,
(female & children -growth excessive prone).
Etiology: low supply (malabsorption) , high demand, loss (hemolyisis).
prematurity, poverty, diet (veg).
pregnacy-lactation, growth.
celiac, and post gastric surgery.
blood loss- colon/cancer, PUD.
intravascular- microangipathic hemlytic anemia, proxysmal nocturia hemolysis.
HB- heme (iron and protophoryin) and globin.
protopyrin increase, low fe2+
microcytic anemia- cells in production-> smaller if not recieving Hb, as hb comes looks bigger relative.
clinical: glossitis, restless leg syndrome, achloryydria-> iron met-> readily resorption.
koilonchyia.
weak, fatgieu, pale, murmur,angina, dyspnoea.

labs: stored in tissue as ferritin.
MCH, HB low, MCV low, HCT low, reticulocytes, wbc normal, platelets icnreased slightly (viscous).
TIBC-> liver more transferrin so increase to catch fe. IL-6 influenes fe2+ if inflammation.
saturation % low since fe2+ low.
RDW: high. becomes mirocytic gadually.
test: biospy (painful).
give patient iron-> if improve (correct dx).
trx: oral ferrous sulfate (melena, CIBH).
(guiac negative)
trx underlying cause if fials consider celiac etc.
IM or IV iron -anaplylaxis (se).

23
Q

iron deficiency anmeia contnued

A

13 g, contains 15-20 mg obly 10 g absorbed.
duodenal uptake heme and on heme iron.
cytochrome B-> reduce fe3+ to fe 2+.
stored in interstitial cells.
hepcidin (regulate metabolism and nhibit transport).
hemochromatosis -> liver pathology-> iron overload.
etiology: chelitis (inflammaiton in corner of mouth).
plummer -vinson syndrome- IDA, esophageal web, chelitis.
serum fe2+ high?? in labs.
differentiatonalm: thalassemia, chronic disesaes anemia.
200 mg twice daily.
disease; SE< chronis, RA, TB, high level hepicidin detected.
sideroblastic: x linked by females (only male affected).
acquired ead, drugs, myelodysplasic, myeloid leukemia.
refracotry (doesnt repond to therapy).
ring sideroblast in apperance).
disordered heme ysnthesis , hypochromatic, excess iron.
trx: folic acid, B 6 vitamins (pyroxidine).
cessation of alcohol, drugs etc

24
Q

pyruvate kinase deficiency

A

AR, enzyme deficiency-> extravascular hemolysis -> newborn
NO PK, no ATp-> dehydrated RBC, burr cells.
cause oxygen dissoiation curve-> migitats sx of anemia (less severe-> 2,3 BPG).
jaundice, splenomegaly, anemia.
clincal: reticulocyte icnrease. mcv normal or high.
LDH high, UCB high, haptoglobin low.
dilutional anemia in pregnancy-> diagnosed at that time.
trx: rbc infusion, iron and folate, iron chelation (preven secondayr hemochromatosis), splenectomy helps+ vaccines.
BM transplant.
anemia: Hb- 50-100g/L.

25
Q

G6DP

A

2 variant: african anf mediatteran variant.
prtoective agent sickle cell, thalassemia, g6dp: malaria.
x linked: only affects males. AR.
fava beans _> cycle halted enzyme faulty
speroxide prevented to fight infeciton
ifneciton preceeds hemolysis the most.
free radical damage to RBC, protect against metahb-HB.
japtobin reduced, stikcs to much->
UC hemolysys- jaundice.
intravascular hemolysiysis
hexose monophate pathway-> no NaDPH.
low Hb,high reticulocytes, high lDH, UC
test G6dp, florescent screening test.
bite peripheral cels. (spleen fiters out oxidised HB)

26
Q

sickle cell

A

AS or SS is autosomal recessive. afro caribnea oriign.
protective agent against malaria.
oxygen binds normally to losely and irreversibly.
defect in B globlin gene.
kids -> doesnt happen to infants till 6 months ffrom gamma to beta.
gene mtutation-> missence point mutation.
hydrophiliac-> hydrophobic.
no sickling -> with oxygen but low oxygen means sickling- damage- hemolysis.
cycle starts & worsens.
trx: oxygen. prevention better than cure
right release
polymerised HB- obstruct artery-> veno occlusive crisis.
infection, dehydration, cold, acidosis (related to hypoxia)>
release oxygen faster rhtna normal HB.
3 clinical forms: homozygous (severe-25%)
combined heteroygous-> Hb s+C>
intermediate.
heteroyzgous HbAs sikcle cell).
leg ulcer, infect eyes, abdo, kidneys, cardiac issues, anemia, asplasia, infarcts pumo. mesentery, necrotic BM,

turbid, precipitation for sickle cell-> normal its clear. (solubility in HBs lower).
low Hb,
reticulocyte high, protein electrophoresis.
blood smear

transufse if complciation. oxygen, abx, opds-morphine
stem cell ,avoid high altitiude.
SC trait- hyxodeycarbamide- HBF conc .
vasocclusive sx.

27
Q

thalassemia alpha

A

defect in globlin chains.
decrease globlin- low HB-> RBC low.
precipiate, insolunle.
imbalance n productio of chains.
extramedullary and medullary comepnsaiton \9hepatosplenomegaly hyperplasia).
2nd hemochromatois -> iron cheation deferoxamine.
iron fe 2= increases, AR recessive.

protophoryi (siderobalstic anemia-defectie, sideroblast ring).

the more deleted, worser the sx.
2 copies at the loci.
1 locus-> deleted-> asx.
2 loci deletion-> asymptomatic or low MCV anemia
3 loci- hemotetramers (unpaired b chains)-> mderate-> severe anemia-bloods. splenomegaly.
4loci-> bind to gamma, no effecite -electrophoresis-> hydrops fetalis (intrauterine death) Hb barts. accurate test: geentic tests.
loos normall on leectrophoresis.
african , meditterean andsouth east asia

HB H-disease: jaudnice, anmeia, chronic
HA -3 loci
hypochromic anemia. high RDW.
haptoglobin

28
Q

hemaotpoesis normal

A

pluripotent (multipotent-BM).
myeloid (myeoblast, proerythroblast), monoblast and megakaryoblast).
& lymphoid cells (t and B lymphocytes).
proerythroblast-> normoblast-> reticulocytes-> erythrocytes (120 days)
myeloblast-> promeyloytes-> myelocytes-> metamelacyocyes (granulocytes- Neu, baso, esino) 7 hrsin blood
mooblast-> promonoblat-> monocytes.
mekaryoblast-> promegakaryocites-> megakaroyctes-> platelets (7 day life)
only and lymphoid granulocytes an monocyte have nucleus.
haemostasis 1st .
neu- bacteiria/ fungus.
baso- histamines
eosino- parasite, allergies.
b-humoral
t-cellular immunity.
yolk sac 3 wks, 6 wks (liver & spleen)-> bm main source.

red marrow-> yellow marrow as we age. inactive until chronic hemolysis.
BM: central skeleton, ribs, pelvis. sternum, vertebrate body-flat bones).
MCV-80-100 fl- av vol of RBC (classify anemia).
low MCV-micro
normocytic
high MCV-macrocytic,
HB-140-180 g/L
females: 120-160
rbc: 4.7-6.1 x 1012
4.2-54 x 1012
ratio of rbc to whole blood (Hct)
40.7-50.3
anemia: low Hct + HB.
ret

pathologies can cause hemopoesis to resume ack in liver+ spleen (extra medullary hemopoietic).

29
Q

reticuocytes:

A

1-2%. < 2% nutritional defiiency.

<100 g/L; pregnant. iron study
tIBC low = low iron-> anemia CKD.
high TIBC-> iron deficency low.
mcirocytic anemia
ferritin high (hide iron).

normocytic anmeiareituclocyte count
<2% hypoproliferation-> leukemia, aplastic anemia-b12 deficiency
ferritin always oppsote of tIBC.
>2% hemolysis
macrocytic:
megaloblastic -b12 deficneyc/ foalte
non megaloblastic-liver/.

30
Q

macrocytic anemia

A

headache, angina slow, tired/pale.
big cells100 fl

hypersegmented Neu in megaloblastic.
folate/b12 deficiency
dna synthesis problem (folate deficiency-> nucleus replication issue).
so from reticulocytes-> rbc (size doesnt change).
all cell lines affected due to dna issues.
megaloblast precursor-> haemolysis-> pancytopenia
folate/b12 (THF absorbed , gets ride of CH3 to B12)-> to get catalized-> homocyteine -> methionine.
methocolabine (CH£+ b12).
ileum absortption. autoimune paritetal, chrons.
neurological manifestation ofPNS-> paresthesial, weakness, babinski.
tear drop RBC, high MCV.
beefy red tongu, dry and yellow skin.
extravascular hemolysis-:> LDH high, bilirubin high. homocystein test (defciency in b12).
radiolabelled test: colobamine
trx: hydroxycobolamine 1000 microgram IM for 3 weeks.
folate: poor intake.
neural tube defect in pregnancy. alcohol & cancer reduce folic store

folic aid 5mg (400 mg daiy) for women. 4 months

31
Q

physiology

A

biconca,ve n nuclei, ribosome or other organelles, increase SA>
G6DP-< pentose pathway. protect HB against oxidative stress, free radicls.
abnormal fe2+ or methehmoglbon canot transport o2.
HbC-> sickle cell carrier trait .
120 days. 90% extravascular hemolysis.
abornla RBC: electorphoresis.
spherocytes: check Direct coombs tesst.
coombs regent+ donors blood-> positive agglutination
indirect: serums ig (recipitent)+ donors blood0> cooms regent- > positve agglutination.
dct +ve: drugs, autoimmune.
DCT -ve: malaria, hereditary hemolysis spherocytosis (deranged Cell membrane of TBC- problem in protein structure)
fragmentation: blister/ bite cells-> punched out due tooxidative or partial phagocytosis..
g6dp and p.kinase,
fragmentation: MHA, elcampsia, DIC, thrombocytopneia purpura.

haemolytic synd: sx associated w/haemolysis.
hereditaory spherocytosis (AD)-vesicles on RBC
cf: jaundice, anaemia, splenomegaly, splenomegaly, ulcers leg, chronic haemolysis (pigmented stones).
stuck-> hemolysis->
increase urobilnpgen, plasma haptoglobin, hemosiderin in urine.
eyrhtrid hyperplasia of BM.
dx: osmotic fragility-> swell in hypotonic solution (tolerate less)>
fhx genetic
microspherocyte on peripheral blood smear,
coombs +ve.
splenectomy.

32
Q

chronic myeloid leukemia

A

9: 22 translocation.
neutrophils, granulcyte, monoblasts.
adult, mature cells (fewer blasts).
smaller cells, dysfunctional.
> 20% acute (blasts).
onset insidious-slow (chronic).
myeloproliferative disorder: polycythemia vera, essential thromocytomeia, MM, CML.
RF: radiation (high dose ioniizng)
age bracket: 45-55. splenomegaly, reactive marrow fibrosis, leukaemia.
ABL and BCR -> fuse together (proco-oncogenes).
reciprocal translocation between chr 9 and 22
good prognosis : CML.
bad prognosis: ALL.
increase proliferation, apoptosis
Trx: tyrosine kinase inhibitor.
CML: fatigue, wt loss, sweating.
generalised, painless, huge splenomegaly(metastasis).
abdo pain, infarction- friction rub.
asx (chronic phase)
accelerated- basophilic, immature.
blast crisis- AML or ALL.
refractory-> death.
lab: peripheral blood smear.
10,000-> 6000
bone marrow -> hypercellular hyperplasia.
cytogenetic-PCR.
basophils increases.
imitinib
second line: dasatinib.

33
Q

myeoprolfierative neoplasia

A

CML, PV, ET, Primary myelofibrosis.
-elderly affected.
all cell lines affected.
rapid cell turnover- uric acid- purine metabolism (gout).#
splenomegaly.
atypical megakaryotices-> fibroblasts porliferate.
1.anmyelosis, pancytopenia. initially then drop
hyperviscotiy syndrome
complication: AML,ALL.
jaks 2 activation mutation- epo/TPO.
fibrosis of BM
negative feedback.
visual, neurological signs and bleeds.
clinical: bizzare platelets, hepatosplenomegaly, gout, ldh, alp.
pancytopneia, tear dropcells. anemia, infection.
dry tap on bone marrow.
tr: splenecotmy, steroids-> inhibit fibroblast, allopurinol.
chemo- low dose prednisone, thalidome
definitive: bone transplant.

2nd myelofibrosis P.vera and essential thrombocytosis.

34
Q

polycthemia vera

A

mutatin of jaks 2 kinase.
sitmulate receptors of EPO and TPO.
RBC (relative and absolute)
plasma BV decrease. HCT increase.
vera- true (absolute).
primary: mutation, cancer, mutation in erythrocyte receptor mutation.
secondary: inrease EPO (abnormal -inappopriate->RCC, HCC etc.
hypoxia (compensaotry mechanism-appopriate)-. high altitude, cyanotic heart disease.
hyperviscosity syndrome.
bruising (lots of platelets), bleeds -> suck. erythomelagia (red, swellling, tender).
thrombosis.
aquatic pruritis- histamine release (basophile).
management: aspirin, cooling, leg elevation erythromelagia.
CBC dx.
HCT> 48%.
hb> 16 g/L.
check abg for hypoxia as secodary cause.
biopsy-> hypercellularity.
increase everything.
mutation seen.
2 major and 1 minor (low serum epo).
or 2 minor + 1 major.
complication: budd chair syndrome.
malignant transformation.
plebotomy, myelosuppresant -suppress bone marrow (use for all myeloprolfierative diseases)
(hydroxyurea), antihistamine, uric acid.

35
Q

essential thrombocytosis

A

lots of platelets
lots of thrombosis, but platelets such so also get bleeds.
pt super high, large / immmature megakarytoces.
megakarytoes hypertrophy/hyperplasia.
dx of excusion: infection, inflammation, anemia, splenectomy, trauma, surgery, stress, ischemia.
bleeding time@: prolonged- suck
PT, PTT, normal -> coagulation factors normal.
malignant transformation->
hydroxyurea *cytoreductive therapy).

primary myelofibrosis- leading to BM firosis, hemopoesis, splenomegaly.
secondary: caused by other myeloprolfierative disorders (leukemias).
CF: weakness, weight, splenomegal
dx: CML, E, AML, MDS.
jaks inhibitor: rixolitinib.
supprotive,

36
Q

treamtnet for PV

A

jaks 2 mutaiton-> tyrosine kinase.
onsidious onset. >60 years.

increase B12.
epo levels increased in 2 polythemia.
400 x 109 for platelet cont.
venesection: remove 500 ml weekly.
chemotherapy: hydroxycarbamide.
low aspirin-100 mg daily. recurrent thrombolytic epiosodes.

esential thrombocytopaeia:

37
Q

myelodysplasia

A

hypercellular, dysplastic, pancytopneia,
aplastic anemia- low rbc (cancer).
mds< 20 %
pre-leukemic, trx to prevent MDS-> AML.
sideroblastic anemia caused via MDS (acquired colonial).
myeloid disorders -> AML,CML,MDS.
mds : inadequate maturation and cytopenia.
M>F. elderly.
Pancytopenia (all lines affected).
infection, bleeds, anemia/fatigue.
de novo mutaiton or environemtnal (benzen exposure), chemo/radiaiton).
30% cause (dysplasia s pre-cancerous)>
MDS: refractory -» ringed siderobalst.
chronic myelomonocyte.
thombocytosis / good prognosis.
unfavorable: percentage of blasts, cytopenia, age, cytogenetic abnormality.
CBC; low reticulocyte count, high mcv.
biopsy, peripheral smear- large aganular platelets, ringedsideroblastic.
dimoprhic rbc (rdw high).
dx: folate deficiency.
aplasitc anemia, myelofibrosis.

38
Q

myelodysplastic syndromes trx:

A

supprotive, HGF (help them maturate), chemo or stell cell transplant.
no sx+ normal: no trx.
stem cell transplant-> cure.
epo, HGF, transfusion-> overload (deferoximine).
platelet trnasfusion.HGF.
epoetin, barbepoetin alpha.
platelts: elthrombopag.
wbc: G-CSF pegfilgrastim.
chemotherapy:
hypomethylating agent-
standard-cytarabine-> trash brain, hair loss.
immunmodulting: linalidomide (thalimodie -> teratogenic MM).
imunosuppresant -> cyclosporine (kidney)
se: GVHD (graft vs host).
peripheral blood smear: single/bilobed granulocytes.
kills bone marrow.

39
Q

classification of MDS

A

1.refractory anaemia dysplastic changes, <1 % dysplastic blood, <5% in marrow.
2.refracotry anemia w/ ringed sideroblast. nucleated Er.
3. refractory anemia + excess blast. 1-5% in blood, more in marrow
4. w transformation. 20-3- myeloblasts
5. chronic myelomonocytic leukemia (CMML).> 1000 monocyte in blood & marrow
sx vaug, incidental finding.
dx: 5q, 22q deletion -cytogenetic.
qualitative and quantitively analysis-> abnormal.
bilobed nuclei, macrocytic anemia.

40
Q

acute leukemia-AML, ALL

A

RF: geentic vs enviornment.
antineoplastic agent.
ionziing raidiation,hodkings lymphoma, MM, benzene.
monoclonal disorderAND ealry hemopoetic stem cell (large, immature cells).
ealry myeloid/early lymphoid-> replicate but cannot diffferentiate/useless.
replace most BM cells-> overcrowd normal hemaotpoesis- bleeds, infection, mucosal bleeds.
coagulation issue-> major bleeds.
enter peripheal blood- leukostasis.
metasise throughout body, headahce, impotent, bone/tender over sternum, splenomegaly.
CF: abrupt, younger, painless LN.
dx: perioehral bloods (large imature .
folic , acrocytic normocytic (rapid high turnove).
<100,00 for wbc and same for platelets.
morphology anlaysis, immunofloresxent, cell maekweea, cell markers, sudan black etc. stains.
MGF, induction phase (idncue chemotherPY-> supress all cell lines-> pancytopenia.
consolidation therapy: prlong emission, therapy (when its gone).
use gene expression to predic,t guide theraphy.
lymphoma for radiation.
SC TRANSPLANT.

41
Q

acute leukemias

A

CF: onset young, sudden, fatigue, painless LN, t-cel deposit in skin, importnet and all causes headahce, hepatosplenomegaly.
dx: peripheral: normo or macrocytic anemia.
folic deficiency.
platelet: 150-400 normal but <100,000.
wbc:<10,00 or 100,000.
melod blast or lumhoblast (myelo/monoblast seen)

41
Q

acute leukemias

A

CF: onset young, sudden, fatigue, painless LN, t-cel deposit in skin, importnet and all causes headahce, hepatosplenomegaly.
dx: peripheral: normo or macrocytic anemia.
folic deficiency.
platelet: 150-400 normal but <100,000.
wbc:<10,00 or 100,000.
melod blast or lumhoblast (myelo/monoblast seen)
biopsy:>20% replaced completely. hypercellular.
kaytoype, moelcular marker, peroxidase detect it.
trx: induction (remission)-> high dose chemo.
infecton specially neutropenia.
myelid GF: reduce hospitalisatiin time.
give rbc and platelet infusions.
consolidation: normalise-> prolong rmeisision.
gene expresion-> predict prognosis
lymphoma - radiation. if youner transplant.

42
Q

hodgkin lymphoma

A

solid tumor of immune system, LN, spleen, malt, bone marrow, thymus.
nonhodgkin more common..
more prognosis /better.
M>F>
bimodial age. 1-2 peak (young and older.
affect younger patient.
cervical lN, hiv higher risk, defect in cell mediated immunity.
benzene
hodkin->ALL.
EBV: mononucleous.
contagious-> spread locally.
extranodal (NHL).
lyadenopaty-> localised/painless.
trx with radiation-> NHL.
2nd amyloidosis (serum A amyloidosis).
classic: nodular slcerosis, lymphocyte rich, depleted, mixed.
nodlar lymphpcyte predominance (non classic).
nodular schelrosis (roses-> ffemale/children).
good prognosis. reed sternberg. lym
ant mediastinal nodes involved.
mixed cellularity-HIV< elderly, abdominal LN=psleen. more than 1 type of cell.
lymphocyte depleted-Least common. most aggressive.

genetic: NF-KB light chain. prolfieratin.
supraclavicular and antmediastinal.
bipsy: core needle. rubery bulging appearance. immunohistochemical.
cd30+ 15.
TTTT types.
fever on /off.
LN,itching
splenomegaly (not massive), nephortic -minimal change disease, jaudncie, erythea nodosa, anemia (autoimmune-> sen in CLL).
pain on alcohol consumption.
dx: neur.eosphinophilia.
poor prognosis if low. HIgh lDH-> poor prognosis.
CXR +CT staging.
pet scan (tumor shrink).
ann arbor classification: single site, > 2 LN,
both sides, diffuse and extralympatic tissue.
B-B symtpoms, might sweat, fatigue and wt loss. 10%.
ABVD: adriamyicn, belomycin, vinblasrine, dacarbazine.
radiotherapy + chemo. (higher stag,e more cycles)>
comlication: hypothryoidism.

43
Q

non hodgkin

A

nodal and extra ndoal. constituional and hepatosplenomegaly. common for b-cells.
aggresive and indolent subtypes.
itching + bsymtpoms.
associated with aids, EBv etc.compression of nearby strucutres.
cytopena autoimune and low igM.
immunosuppresion causes.
median age- 50 years.
viruses: EBV, hep C.
radiation. h.pylori.
dx: excisional biopsy.
immunohistology, measure igM/igG.
uric acid (High).
physical and ct -TAP.
pet scan: monitor.
cyopenia- boen marrow to determine cause.
aggressive vs indolent:
h.pylori- gastric/maltoma.
HCv-> b-cell lymphoma.
sjjoren-Salvary lymoma.
supvena syndrome.
has leukemic phase-> see in blood (spread to bone marrow)>

high grade-> young, chemo to cure, bad prognosis.
low grade: older, sensive, and aggressive change
aggressive: burkitt, diffuse b-cell, mantle cell.
indolent -follicular, hairy cell leukemia.

44
Q

CLL

A

mature, funcitolaly imcompetent- lymphoprolfierative.
solid nodal mass.
eukemia-> lymphoma.
asx.
newborn -ALL
40-60-AML/CML.
>60 - CLL.
smudge cells lymphoctois, lympahdenopathy, hepatosplenomegaly.
anemia, thrombocytopenoa (poor prognosis).
stage 0- lymphocyto.
1alymphadenoenopahty, splenomegaly.
2anemia
3-thrombocytopnenia
4
rai system.
10% difuse large cell lymhpoma (aggressive)
cytopenia.

45
Q

multiple myeloma

A

monoclonal gammopathie-> dysproteinemia.
gammma antibody chains globulin.
B-lypho-> plasma cells-> Ab.
most cases, light chain in excess-> cleared via kidney.
small<10 mg /day.
only in electorphoresis. not disptick -> only detect albumin.
bence johns protein.
M-spike (gamma protein increase).
use immunoelectrophoresis (imunofixation) to distinguish type of gamma chain in excess.
singular igGigA etc .
crowd out other antibody-> immunodeficiency since others are deficient.
risk of infection (virus not prone since t-cell intact).
paraproteins.
older age.
benzene/
pathogenesis-> dysrgulation of clyclin D- boe arrow->il6-> myeloma.
osteoclast and osteoblast inhibited-> bone lesions.
ALP (no osteoblast) normal.
nuclear bone scan normal. x-ray detected only.
normal_>MGUS->MM.
bone pain (ribs, back, skull etc0>
punched out lesionns, hypercalcemia, weak bones.
hematolgoy: normocytic , normochromatic anemia.
high esr.
bleeding time, platelet deficiency (cover platelets).
roulex formation (clump-> ink) mproteins.
dialysis corrects bleeds.
interact with coauglation factors., amylodioss damnges endothelium-> clots.
radiculopahty(root of nerve), neuropahty-> bladder+ bowel control loss.
lethary, confsion, weakness, hyperviscosity syndrome kidney failure.
CRAB: calcium renal infussiency, anemia, bone ppain/
fanconi syndrome.
MM-ALL.
trx: rehydrate, nalgesia, local radioterapy.abx for bacteria infection#
VAD regmen-Dexamethasone, vincrisitne adriamyic.

46
Q

HSP

A

igA vasculitis.
children-lower leg, vuttock.
kidney, GIT (abdo pain->hemorhage, ifnarction)
triggered vi upper RTI< gastroenteritis. <10 yrs/.
kidney impairemnet.
leaky SV bleeds-> purple red lumps-> non blanching.
features: 100%.
affect arms/ trunk. necrosis if severe.
arhtalgaarthritis.
iga nephirtis-> hematuria.
proteinuria
2+ protein urinalysis-> nephrotic.
ddx: leuekmia,thrombocytopie ourpura, HUS.
investigation: CBC, film (sesis, leukemia, sepsis0< labuminrenal profile, urine dipstick, BUN, BP check (HTN).

palpble purpuea and other sx.
management: analgesia, rest , hydration. maybe steroids.
monitor closely